Author(s)

Roch Corneille Ngoubou¹, Jean Bienvenu Dinga², Dominique Nganga¹

¹Faculty of Sciences and Techniques, Doctoral Training in Environmental Geosciences (University Marien NGOUABI), Brazzaville, Congo.
²Laboratory of Physico-Chemical Analysis of the Institute for Research in Exact and Natural Sciences, Scientific Research, Brazzaville, Congo.

This research work focuses on the physico-chemical analysis of surface water from the Djiri River with the aim of preventing the population against possible water pollution. The analysis of samples taken from the Djiri river revealed the presence of lead in these waters at levels exceeding the WHO guideline values: an average annual pollution (0.93 mg/l) which is visibly higher than the value. WHO guide (0.01 mg/l) in situ data from the Djiri River revealed a significant drop in flow between the 2016 period characterized by a divergence index of 0.82344, thus highlighting a hydrological situation for which national hydrological stakeholders will absolutely have to implement measures, remedial measures or mechanisms to protect this river against possible disappearance by elimination of lead in the water.

Metallic Pollution, Water Quality Standards, Indicators and Degree of Pollution

Ngoubou, R. , Dinga, J. and Nganga, D. (2021) Diagnosis of Lead Pollution of Surface Waters of a River: Case of the Djiri River in the Republic of Congo. Journal of Water Resource and Protection, 13, 173-189. doi: 10.4236/jwarp.2021.133010.